This isn't on sale that I know of but it's only 2.99 and it was a great read:
http://www.amazon.com/gp/product/B00SW4KDZI
Disorganized Crime by Alex King.
There were some caveats if you are a cozy reader--As I said in my review at the blog, there are a LOT of innuendos and juvenile jokes and some cross the line to crass a couple of times. Overall the book is funny and fun and I enjoyed it a lot.